<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body><script type="text/javascript">
		var stu={
			id:1,
			name:"张三",
			age:18
			
		}
		
		for(var i in stu)
		{
			
		}
	</script>
	</body>
</html>
